Razor.



W. H. BLAKE.

I ,RAZOR.

APPLICATION FILED JAN. 3. I910.

Patented J uly 23, 1918.

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RAZOR.

v Specification of Letters Patent.

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Application filed January 3, 1910. Serial No. 535,907.

To all whom it may concern:

]Be it known that WILLIAM H. BLAKE, a citizen of the United States, residing at Jersey City, in the county of Hudson and State of New Jersey, have invented certain new and useful Improvements in Razors, of which the following is a specification, reference being had to the accompanying drawings.

My invention relates to improvements in razors and particularly to that type of razors in which a removable blade is used; and an object of my invention is to provide a razor of the type just referred to which will be simple in construction, relatively cheap in manufacture and most efficient in use. Another object of my invention is to provide the removable blade and its holder with complementary parts so shaped that it will be impossible to reverse, either intentionally or inadvertently, the endsof the blade in positioning the latter in its holder. A third object of my invention is to provide a razor of the class just described with means by Which the removable blade will be securely and rigidly held in its holder, despite mechanical inaccuracies of fit resulting from the manufacture of the parts by rapid and, therefore, cheap processes whereby lessened cost results without a lowering of the quality of the finished product.-

The blade-holder of an ordinary safetyrazor is not adapted for holding the blade, While the latter'is being sharpened, as by stropping; hence, a second blade-holder is sometimes used for stropping the blade and the latter, after having been given a keen edge, is removed and positioned in the blade-holder of the safety-razor. For the best results in shaving it isessential that the blade occupy the same relative position in the safety-razor that it did in the blade holder used in stropping it; and it is an important feature of my invention that means are provided which prevent the mispositioning of the blade inadvertently.

Other features of my invention will be pointed out in the description and claims which now follow.

In the drawings illustrating the principle of my invention and the best mode now known to me of applying that principle, Figure 1 is a .plan view of a safety razor em odying my invention; Fig. 2 is an end view of the same; Fig. 3 is a plan View of the guard-plate or bladerholder, the blade being shown removed; Fig. 4 is a section on the line AA of Fig. 3; Fig. 5 is a section on the line lB-B of Fig. 3; Fig. 6 is a plan View of the removable blade; Fig. 7 1s a plan view, of the locking-plate; Fig. 8 is an'edge view of thela'tter; Fig. 91s a plan view of an ordinary or unguarded razor embodying my invention; Fig. 10 is an end view of the razor shown-in Fig. 9; Fig. 11 is a plan View of the bladeholding member of the razor shown in Fig. 9 and Fig. 12 is a plan view of the locking-plate of the razor shown in Fig. 9.

The blade-holding guard-plate a; is formed with serrated edges 6 and from it extends a shank 0 to which is pivotally fastened an ordinary handle d. At its front end or edge, the guard-plate a is in one of its faces formed with an indentation or recess e over the outer end of which lies a transverse rib f struck up from and, therefore, integral with the metal of the guardplate and projecting from the opposite face thereof. The inner end of the shank 0 lies where it joins the heel of the guard-plate (with which it is integral), slightly above the plane of the inner face of the guardplate and. from it extend forwardly and lengthwise of the guard-plate a pair of parallel ribs or flanges g which, together with the inner end of the shank c, from the wall of a U-shaped recess h. The rear or outer part of each rib g is cut away, whereby a shoulder z is formed therein.

At its front end the removable doubleedged razor-blade y is formed with a notch or indentation is shaped to receive the transverse rib f and at its rear end it is formed with a notch or indentation is shaped to receive the inner or front ends of the longitudinallyextending parallel ribs 9. It is an important feature of my invention that these notches or recesses 70, 7c are differently shaped, whereby it is impossible to reverse the ends of the blade 9' in positioning the blade in its holder, the guardplate a. 1

The locking-plate m (which serves also as a guide-plate and guard-plate) is slightly convex on its outer or guiding face and is flat on itsinner face, the latter lying against the blade 7'. At its front end the lockingplate m is formed with a tongue 72. which is depressed below the plane-of the inner face of the locking-plate and which is shaped to fit in the recess 0, which it enters through the opening 6', the transverse rib serving to hold it in place therein. 'At its rear end the locking-plate m is formed with a tang 0 the tip end of which is reduced to form a thin lip 17, whereby a shoulder q is formed where the latter joins the body-portion of the tang, which is shaped to fit in the U- shaped recess h of the guard-plate.

Pivotally fastened to the shank 0 is a clasp 1" the front or free end of which in moving intoits locking position bears against the shoulder q, and which fits in its closed position snugly over the thin lip p of the tang 0, in which position the front edge of the clasp bears against the shoulders i, 9. While the razor-blade is very thin, yet it raises the tang o from the inner face of the guard-plate (man amount equal to its thickness; and the clasp 1- presses tightly upon the li p which, being very thin, yields and is orced against the inner opposed face of the guard-plate, the rear edge of the razor-blade j serving as a ful crum or support about which this bending or springing takes place. This construction insures a tight grip by the locking-plate m upon the razor-blade 7' even when there is not an exactness of mechanical fit or adjustment, fromwhich it results that such nicety of manufacture may be dispensed with without affecting the rigidity and fixedness of position of the blade in 1ts holder. Hence, the time and labor spent upon the article in its manufacture may be reduced and the device may be produced at a reduced cost free from defects due to mechanical inaccuracies in manufacture or resulting from/wear of the parts.

. The same principle is applied to or em bodied in the unguarded razor illustrated in- Figs. '9. to 12, both inclusive. One end of the lockingplate m is formed with a notch or recess n from the inner or end wall of which projects the tongue at. At its other end, the'locking plate n is formed with slots 9 inwhich are adapted to fit the ribs g. This arrangement of parts gives great firmness and rigidity to the structure, which is most. essential since, in stropping the blade 1', the locking plate m" is, of course,

rubbed with great pressure against the frictional surface of the strop. The opposed edge portions a", m of the blade-holder a and the locking-plate m are each formed with a ridge. or swell substantially semicircular in transverse section, so that in strop ing the razor-blade j, the stropped edge 0 .the

latter will be presented to the surface of the razor-strop at the proper angle. Moreover, the edge portions a, m shield or guard one cutting edge of the two-edged razor-blade, whereby cutting of the razorstrop is avoided. Fig. 10 in conjunction with Figs.'9, 11 and 12, shows the lateral 'ders 2', g and of the clasp "lip p. The holder shown 1n Fig. 9 may, in

I cut the strop, in the operation of stropping or sharpening the exposed or unguarded cutting edge of the razor-blade. This evenness of surface is obtained by the snu fit of the tongue-like projections n, 0 in the recesses e, h, respectively, and of the snug fit of the front edge of the clasp r against the shoulitself over the conjunction with a suitable strop, be used as a means for sharpening the blade j of the safety razor illustrated in Fig. 1; and after the blade has been sharpened, it is impossible to reverse its ends in positioning it in the guard-plate a; and this is an important feature, since it is well known that a definite relation exists between the movement of the razor-blade (as from heel to toe) in shaving and its movement (as from toe to heel) in stropping; and this relation requires that the blade shall be properly positioned in the safety-razor guard-plate, after its removal from the stropping-holder and that an inadvertent mis ositioning shall be made practically impossi le.

I claim:

1. A razor consisting of a reversible razor-blade member and a blade-holder member therefor; said razor-blade member being formed with a pair of cutting edges and being susceptible of being stropped; one of said members being formed with a pair of notches and the other of said members being-formed with a pair of cooperating raised portions adapted and designed to en gage in said notches to interlock said members with each other; said notchesbeing of different shapes, whereby an inadvertent mispositioning of the razor-blade member in the blade-holder member after stropping is prevented.

2. A razor having a blade-holder formed at one end with an apertured raised portion which projects from one of its faces and with a recess in its opposite face heneath said raised portion; a razor-blade which lies against the first-named face and is formed at one end with a notch the walls of which engage said raised portion to position said blade and hold the same against displacement; a locking-plate which overlies said razor-blade and is formed at one end with a tongue which fits in said recess; and a clasp which holds the other end of said locking-plate in position on said 'bladeholder.

rararer formed at one end with a tongue which fits in said recess; and a clasp which holds said end of said locking-plate in position with respect to said'raised portion and holds the other end of said locking-plate in position on said blade-holder.

A. A razor having a blade-holder formed at one end with an apertured raised portion which projects from one of its faces and with a recess in its opposite face beneath said raised portion; a razor-blade which lies against the first-named face and is formed at one end with a notch the walls of which engage said raised portion to position said blade and hold the same against displacement; a locking-plate which overlies said razor-blade and is formed at one end with a tang and at its other end with atongue which fits in said recess; and a clasp which presses said tang toward said bladeholder and thereby causes said locking-plate to grip til said razor-blade; firmly. 4

5. A razor having a blade-holder formed atone end' with an apertured raised portion which projects from one of its faces and with a recess in its opposite face beneath said raised portion; a razor-blade which lies against the first-named face and is formed at one end with a notch the walls of which engage said raised portion to position said blade and hold the same against displacement; a 'lengthwise-slidable locking-i plate which overlies said razor-blade and isformed at one end with a tang havin a shoulder and formed at its other end wit a tongue which fits in said recess; and a clasp which presses said tang toward said bladeholder and'thereby causes said locking-plate to grip said razor-blade firmly and which bears against said: shoulder and thereby holds thetongued end-of said locking-plate position with respect to said raised portion. v 6. A crazorhavinga blade-holder formed at one end with an apertured raised portion which projects from one. of its facesand with a recess in its opposite face-beneath said raised portion; a razor-blade which lies against the-first named face; a locking-plate which overlies said razor-blade and is formed at one end with a yielding tang and at its other end with a tongue which fits in said i and a clasp which presses said tang toward said blade-holder and thereby causes said locking-plate to grip said razorblade firmly.

7. A razor having a blade-holder formed at one end with an apertured raised portion which projects from one of its faces and with a recess in its opposite face beneath shoulder and thereby holds the tongued end of said locking-plate in position with respect to said raised portion. 1 8. A razor having a blade-holder forme at one end with an apertured raised portion' which projects from one of its faces and with a recess in its opposite face beneath said raised portion; a razor-blade which lies against the first-named face; a locking-plate which overlies said razor- 'blade and which is lengthwise slidable thereon and is formed with a tongue at one end which fits in said recess and the other end of which locking-plate is yielding; and a Tclasp which, presses said locking-plate lengthwise toward said raised portion and forces the last-named end'of said lockingthin;

plate towardsaid blade-holder to grip said vrazomblade firmly.

9. A razor having a blade-holder formed at each end with a recess; a razor-blade removably-mounted in said blade-holder; a

locking-plate which overlies said razorblade and which is formed with a tonguelike projection at each end, each of said projections fitting in one of said recesses and one of said projections having a thin .lip and "a shoulder; and a clasp which in locking position bears against said shoulder and presses said lip toward said bladeholder; whereby saidlocking-plate is made to\ grip said razor-blade firmly.

10. A razor consisting ofa blade-holder formed at. each end with a recess and provided at one end with a shank; a razorblade removably mounted in said bladeholder; a lengthwise-slidable locking-plate which overlies said razor-blade and which is formed at each end with a lengthwise-extending tongue-like projection, each of said projections fitting snugly in one of said recesses and one of said projections being yieldingpand a clasp which is mounted on said shank end and which engages and presses the'yielding one of said projections toward ,said blade-holder; whereby said locking-plate is made to grip' said'razorblade firmly.

11. A razor consisting'of a blade-holder formed at each end with a recess'and provided atone end with a shank; a razorblade which is removably mountedin said blade-holder and the end portions of which engage walls of the recesses formed therein; a lengthwise slidable locking-plate which overlies said razor-blade and which is formed at each end with a lengthwise-extending tongue-like projection, each of said projections fitting snugly in one of said re-. cesses; and a clasp which is mounted on said shank end .and which engages and presses one of said projections toward said blade-holder, whereby said locking-plate is made to grip said razor-blade firmly.

12. A razor consisting of a blade-holder formed at one end with a raised part beneath which is a recess and at its other end with a pair of ribs and a shank; a razorblade which is removably mounted in said blade-holder and which engages said raised part and ribs; a locking-plate which overlies said razor-blade and which is formed with a tongue-like projection at each end, one of said projections fitting snugly in said recess and the other of said projections fitting snugly between said ribs; and a clasp which is mounted on said shank end and which engages and presses the lastnamed projection toward said bl'ade-holder, whereby said locking-plate is made to grip said razor-blade firmly.

13. A razor having a blade-holder formed at one end with a raised portion which projects from one of its faces and with an openmg near said raised portlon; a razor-blade which lies against said face; a lockingplate which overlies said razor-blade and which is formed at one end with a recess from a wall of which extends a tongue-like projection that passes through said opening and bears against the opposite face ofsaid blade-holder, said raised portion lying within said recess; and a clasp which holds the other end of said locking plate in position on said blade-holder.

' 14. .A razor having a blade-holder formed with ribs; avrazor-blade which is removably' mounted in said blade-holder; a lockingplate which is formed at one end with slots between which is a tongue-like projection, said ribs fitting insaid slots; and a clasp which in-its locking position bears upon said projection and presses the same toward said blade-holder and thereby causes said locking-plate to grip said razor-blade firmly.

15. A razor having a blade-holder which is formed at one end with ribs and at its opposite end with a raised portion which projects from one of its faces and with an opening near said raised portion; a razor-blade which lies against said face; a locking-plate which overlies said razor-blade and which is formed at dne end with slots between which is a tang and which is formed at its said blade-holder and thereby causes said locking-plate to grip said razor-blade firmly.

16. A razor consisting of a blade-holder formed with a pair of ribs and a shank at one end; a razor-blade which is removably mounted in said blade-holder and which is formed with two cutting edges; a lockm plate which overlies said razor-blade an which is formed at one end with a pair of slots between which is a tongue-like projection, said ribs fitting in said slots; and a device for pressing said projection toward said blade-holder; one of the cutting edges. of said blade being exposed, while its other cutting edge is shielded by the adjacent edge pprtions of said blade-holder and lockingate.

p 17. A razor consisting of a razor-blade member; a blade-holder member therefor; a locking-plate which overlies said razor-blade member; and means for fastening said locking-plate to said blade-holder member; said members being formed with reciprocal cooperating means by which the ends of the razor-blade member are interlocked with the blade-holder member; the means by which one end of the razor-blade member is interlocked with the blade-holder member having a shape different from that of the means by which the other end of the razor-blade member is interlocked with the blade-holder member, whereby an inadvertent m spositioning of the razor-blade member in the latter is prevented; the razor-blade member having two cutting edges one of which is unguarded and the other of which is shielded by the adjacent edge portions of said bladeholder member and locking-plate.

18; A razor having a blade-holder formed at one end with an opening and near the same with a raised part which projects from one face of said holder; a razor-blade which is removably mounted in said holder and which is formed with two cutting edges; a locking plate which overlies said razor-blade and which is formed at one end with a tongue-like projection that passes through said opening and bears against the opposite face of said holder and the other end of which locking-plate is yielding; and a device which presses the last-named end of said locking-plate toward said holder and causes said locking-plate to grip said blade firmly; one of the cuttin edges of said blade being exposed, whilelts other cutting edge is shielded by the adjacent edge ortions of said blade-holder and lockin -p ate.

19.. A razor having a blade-holder ormed with ribs; a razor-blade which is removably mounted in said blade-holder and one end of which interlocks with said ribs; a locking-plate which is formed at one end with slots between which is a tongue-like projection, said ribs fitting in said slots; and a device which presses the other end of said locking-plate toward said holder and causes said locking-plate to grip said blade firmly; the latter being formed with two cutting edges one of which is normally exposed and the other of which is normally shielded by the adjacent edge portions of said bladeholder and lockinglate.

20. A reversible ouble-edged razor-blade having each of its sides edged and each of its ends'tormed with a recess that serves to interlock the razor-blade with the holder therefor; the shapes of said recesses difiering from each other and thereby preventing an inadvertent mispositioning of the razorblade in its holder.

21. A razor having a blade-holder which is formed at one end with ribs and at its opposite end with a raised portion which projects from one of its facesand with an opening near said raised portion; a razorblade which lies against said face and is formed with two cutting edges, one end of said blade being interlocked with said ribs and its other end being interlocked with said raised portion; a locking plate which overlies said razor-blade and which is formed at one end with slots between which is a tang and which is formed at its other end with a recess from a Wall of which extends a tongue-like projection that passes through said opening and bears against the opposite face of said holder; and a device which presses said tang toward said holder and causes said locking-plate to grip said blade firmly; one of the cutting edges of the latter being normally exposed, while its other cutting edge is normally shielded by the adjacent edge portions of said bladeholder nd locking-plate.

Signed at New York city, N. Y., this twenty-third day of December, A. D. 1909, in the presence of the two undersigned wit- E. I. MCCARTHY, JAMES HAMILTON. 

